Refrigerating apparatus



Feb. 10, 1931. F. J.HEEDEMAN 3,791,499

REFRIGERATINC- AIPPARATUS Filed Nov. 59; 1929 Patented Feb. 10, 193i UNITED STATES PATENT orrlcsgei rnEnERr'cx a. nnrnnnen, or DAYTON, oHIo', ASSIGNOB'TO FBIGIDAIBE CORPORATION,

or DAYTON, omo, AconronA'rron or DELAWARE "BEFRIGERATING APPARATUS Application filed November e0, 1925. Serial No. 410,744.

This invention relates to refrigerating apparatus and more specifically to the condenser v or heat dissipating element of refrigerating apparatus. i

I v ferred form of the The principal object of this invention is to increase the eiiiciency of refrigerating apparatus ge erally and more specifically to increase the eciency of refrigerating apparatus by providing a new and improved condenser therefor. a

' Another obj ect. is to rovide a condenser of novel construction an design providing a longer path for the fluid to be-condensed and .anincreased radiating surface to conduct the heat from the said fluid while at the same time occupying no more space than heretofore occupied by condensers of much smaller capacity. Further objects and advantages of the present invention will beapparent from the following description, reference be ng had to the accompanying drawing, wherein a prepresent invention is clearly shown.

In the drawings:

Fig. 1 is a horizontal section through a ma chinery compartment showing the heat d1s sipating elements mounted therein;

Fig. -2 is a front view of the compressor" and condenser; and I Fig. 3 is a side view of the condenser. Referrin to the drawings and more specifically to iig. 1 thereof, there 1s shown generally at 10 a compartment for housing the heat dissipating elements of a refrigerating system. This'housing maybe part of a refrigerating cabinet and may be located either above or below the insulated food compartment.- As shown, this compartment comprises corner post or frame members 11, base members 12, inner and outer side panels 13 and 14, and a front panel 15. For providing access to the interior of the machinery compartment, the front panel 151s rovided with an opening 16 normally close by the door 17, which may be hinged to the base meanbers 12, as shown at 18. A: latform 19 1s.

' mg throughwhlchmay pass the; drive shaft f "resiliently mounted within. t e machinery com artment or. the basemembers 12 and this dissipating elements of which may comprise ments of the apparatus; The refrigerating apparatus herein disclosed to illustrate the invention is ofthe compression type, the heat connection between the motor and the compressor. The condenser Gis located between the compressor P and the flywheel 21-and is connected at its upper end to the discharge side of thecompressor by means of the fitting 27 and at its other or lower end is connected to the receiver R by means of the conduit 28. The receiver R is mounted on the platform 19 by means of'the brackets 29, and'by means of the conduit 30 the receiver is also connected to an evaporator (not shown), but which may preferably be of the flooded type, similar to that shown in the patent to R. G. Osborn, 1,556,708, patented October'13, 1925. The suction side of the compressor may also be connected to the. evaporator (not shown), by means of the conduit 31 in the usual manner. v

.The condenser is shown in more detail in Figs. 2 and 3, and may comprise a single continuous conduit bent backwards and forwards upon itself to forma plurality of parallel horizontal passages and to form relatively wide upper and lower sections 31, 32 above and below the drive shaft, and relatively narrow intermediate sections 33, 34

on either side of the drive shaft-with -the sections connected in series. This may be accomplished by first bending the conduit to form the up er section 31 then continuing down the rig t hand side to form the section 34 and then down the left hand sid'e'to form section 33, leaving ,therebetw'een an openyl yziormingithe lower mlativelyeasily supported on' the base 19 as shown, by the upright members 36 provided with inclined openings 37 into which the bent ends of the condenser may fit. Also with this type of condenser, the receiver R may be dispensed with by utilizing the lower relatively wide section as the receiver and connecting this section directly to the evaporator,. (nt..

The condenser, it will be noted, occupies no more space than heretofore occupied by condensers of much smaller capacity and at the same time may be conveniently located between the compressor and the flywheel therefor without sacrificing much condensing surface for the passage of the shaft. Further by bending the condenser as shown first down the right side and then upwardly and down the left side, a plurality of bends equally spaced-apart, are presented for the reception of-supporting standards as well as for the reception of finned'plates if desired.

In operation, gaseous refrigerant is withdrawn fromthe evaporator through conduit 31, compressed by the compressor P into the condenser C when it is liquefied and finally collected in liquid in the receiver R. From the receiver, the liquid refrigerant returns to the evaporator through conduit 30. It will be noted that the back of the compartment is open and air will be drawn inwardly by the fan 23 over the condenser C and striking the front door 17 the air will be deflected and discharged from the compartment by the action of the fan 25. All the condenser surface is thus ex osed to the coolest air and does not depen for its cooling, upon air defiected from any hot element of the system.

While the condenser has been illustrated as applied to a compression machine assembly it is' obvious that the condenser could be used equally well in any other system.

While the form of embodiment of the invention'as herein disclosed, constitutes a pretions, said intermediate sections being spaced to provide an opening adapt-ed to receive a drive shaft.-

2." In refrigerating apparatus, a condenser includingupper' and lower relatively wide sections and a plurality of relatively" narrow intermediate sections, said intermediate sections being spaced to provide an opening therebetween and all said sections being con- Y nected in series relation substantially as described.

3. In refrigerating apparatus, a condenser including a single continuous conduit bent upon itself into a tortuous passage to form upper and lower relatively wide sections and apIurality of relatively narrow intermediate v sections spaced apart to provide an opening thergbetween, the total width 'of the relatively narrow sections taken with the space therebetweenbeing substantially equal to the width of the relatively wide sections.

4. Inrefrigerating apparatus, a condenser including a single continuous conduit bent,

upon itself into atortuous passage to form a relatively wide section and a plurality of adjacent narrow sections spaced apart to provide an opening therebetween.

5. In refrigerating apparatus, a condenser including a single continuous conduit bent upon itself to provide a plurality of parallel passages, said passagesbeing constructed toform a relatively wide section, and a plurality of adjacent relativelynarrow sections,

'said relatively narrow section's being spaced apart to provide an opening therebetween.

6. In refrigerating'apparatus, a condenser comprising a single continuous conduit bent upon itself to provide a plurality of parallel passages, said passages being constructed to form a relatively wide section, a plurality of adjacent relatively narrow sections, said relatively narrow sections bein spaced apart to provide an opening theremetween, and means for supporting the condenser in a vertical position.

7. In refrigerating apparatus, a condenser comprising a single continuous conduit bent upon itself to provide a plurality of parallel 1.

passages, said passages being constructed to form a relatively wide section, a plurality of adjacent relatively narrow sections and said relatively narrow sections being spaced apart to provide an opening therebetween, and means for supporting the condenser in a vertical position, said supporting means comprising upright metal strips provided with inclined openings for receiving the ends of the condenser.

8. In refrigerating apparatus, a condenser including a pluralityof horizontal and parallel passages, said passages being arranged to form a relatively wide upper section and a plurality of relatively narrow adjacent sections spaced a art to provide an opening for the passage 0 a drive shaft.

In testimony whereof I hereto aflix my signature.

FREDERICK J. HEIDEMAN. 

